Tunnel Rings
Cyan frames flying out of the distance toward the viewer on a loop, fading in far away and out as they pass the plane.
- lines of CSS
- 48lines of CSS
- dependencies
- 0dependencies
- browser, for years
- Everybrowser, for years
- stops under reduced motion
- Guardedstops under reduced motion
Vue, Svelte, styled-components and Tailwind exports are part of Pro. HTML, CSS and React are free forever.
.fx-v13-3d-tunnel-15474 {
position: relative;
width: 140px;
height: 110px;
perspective: 220px;
transform-style: preserve-3d;
overflow: hidden;
border-radius: 0.6rem;
background: radial-gradient(circle at 50% 50%, #0b1224, #020617);
box-shadow: inset 0 0 30px rgba(0,0,0,0.8);
}
.fx-v13-3d-tunnel-15474 i {
position: absolute;
top: 50%;
left: 50%;
width: 96px;
height: 76px;
margin: -38px 0 0 -48px;
border: 2px solid #22d3ee;
border-radius: 0.4rem;
box-shadow: 0 0 14px rgba(34,211,238,0.4);
animation: fx-v13-3d-tunnel-15474-fly 3s linear infinite;
}
.fx-v13-3d-tunnel-15474 i:nth-child(2) { animation-delay: -0.6s; }
.fx-v13-3d-tunnel-15474 i:nth-child(3) { animation-delay: -1.2s; }
.fx-v13-3d-tunnel-15474 i:nth-child(4) { animation-delay: -1.8s; }
.fx-v13-3d-tunnel-15474 i:nth-child(5) { animation-delay: -2.4s; }
@keyframes fx-v13-3d-tunnel-15474-fly {
0% { transform: translateZ(-460px); opacity: 0; }
20% { opacity: 1; }
85% { opacity: 1; }
100% { transform: translateZ(120px); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
.fx-v13-3d-tunnel-15474,
.fx-v13-3d-tunnel-15474::before,
.fx-v13-3d-tunnel-15474::after,
.fx-v13-3d-tunnel-15474 *,
.fx-v13-3d-tunnel-15474 *::before,
.fx-v13-3d-tunnel-15474 *::after {
animation-duration: 1ms !important;
animation-iteration-count: 1 !important;
animation-delay: 0ms !important;
transition-duration: 1ms !important;
transition-delay: 0ms !important;
}
}<div class="fx-v13-3d-tunnel-15474">
<i></i>
<i></i>
<i></i>
<i></i>
<i></i>
</div>What do I do with this?
- Put
tunnel-rings-15475.cssanywhere your page already loads CSS from — in Next.js that isapp/globals.css, or any stylesheet with a<link>in your HTML. - Then put the class on the element you want it on:
<button class="fx-v13-3d-tunnel-15474">. The CSS does nothing until a class name in it matches something on the page.
- Link the stylesheet, then paste the markup wherever you need it.
npx hoverlab add tunnel-rings-15475What's included
- The markup and the stylesheet, in whichever framework you pick
- No runtime dependencies
Works with
- React
- Vue
- Svelte
- Tailwind
- styled-components
- Plain CSS
npx hoverlab add tunnel-rings-15475
Or over MCP, from your editor's agent — no account needed.
License
Free to read, copy and install, for personal and non-commercial projects. Shipping it in client work or a paid product needs Pro ($79 once). The source lands in your repo and stops being ours — no attribution, nothing to upgrade.
Motion safety
Static estimate, read from the CSS
- Reduced motion
- Guarded
Ships a
prefers-reduced-motionblock, so the loop settles into its end state for visitors who ask for less motion. - What it animates
- Compositor only
Only
transform,opacityorfilter: the GPU can run it without re-laying-out or repainting the page. - Flashing (WCAG 2.3.1)
- Under 3 flashes/s
Its brightest loop is about 0.3 a second. Estimated from duration, iterations and keyframes, not from rendered frames.
- Layout shift (CLS)
- No shift expected
Nothing it animates moves or resizes the box in flow. A category from the CSS, not a measurement for this effect.
Every row is read from the shipped CSS. Only a figure marked measured came from a browser. Customizing the speed changes the timing, so recheck a customized copy. How it is computed
31 more effects in 3D & Perspective
All of them free to read, copy and install — no account, no locked tiles, no watermarked preview. The whole catalog is open, and so are the API and the CLI.
Browse 3D & PerspectiveShipping one commercially
Copying the code is free. Putting it in client work or a paid product is what Pro is for — the licence, not the access.
- A commercial licence for everything in the catalog
- Unlimited bundle exports, in Vue, Svelte and Tailwind
- One payment — no subscription, nothing to renew
7 variations of Tunnel Rings
Finished looks, each one a position in the customizer above. Copy any of them, or open it and keep moving the sliders.